National Museum of Nuclear Science & History
P. C. Dabbs worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Jack L. Callan was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
J. H. Rhodes worked for the J.A. Jones Construction Company.
Joseph Pappalardo was a staff worker at Los Alamos during the Manhattan Project.